This simple Instructable is to show how to configure (set-up) MangoCube BLE Board (from Megavizon) with Arduino UNO or compatible board. It does not require any extra components or 5V to 3.3V logic level shifting.

Also no need for FTDI cable or other UART module, just Arduino UNO/compatible board is enough!

Supplies:

Step 1: Perform Loop-back Test

To check Arduino UNO serial connection, lets perform Loop-back Test.

Connect the Arduino UNO/Compatible board with PC/Mac.

Upload "Blink" sketch.

Connect the Rx and Tx of Arduino UNO/compatible board together (short).

Open 'Serial Monitor' from Tools menu.

Make sure Baud rate is 115200Baud. (please use 115200 instead of 9600 for the production version on MangoCube BLE and BLE board)

Make sure 'no line ending' is selected.

Type 'a' and press 'Enter/Send'.

Result : you should be able to get 'a' written back in the serial monitor.Your Loop-back test is a Success! This means your Arduino UNO/compatible board's Serial connection is working correctly and we can move on to the next step!